I reckon that you're probably right. In fact, as part of my basement cleaning out exercise, mentioned elsewhere, I made the decision to let some old favorites go--my Sofft Calvados sandals--because they are too low. I had already gotten rid of a silver pair last year because of deterioration, but these two pair were perfectly wearable. It's just that I never wear them anymore, and I can't foresee a time when I will wear them again. It's hard to tell from this photograph, but they are covered in a fairly thick layer of dust, and that influenced my decision to donate them.
They are effectively less than 3 inch heels, or 7 cm, and that is just too low for my taste these days, at least in that style of heel. The combination of narrow heels with less than towering height makes them pretty much the last choice for everything. I used to wear them to things like farmer's markets where I was afraid that anything taller might result in my discomfort or worse. Now I don't worry about that, so I guess one can increase one's ideal heel height eventually.